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S Illinois | And my point is the rainfall back east isn't some panacea that somehow makes us immune to crop yield reducing dry spells. Your yearly precipitation distribution is almost perfectly timed with regards to crop production. Soils not saturated is a big deal in the spring. Wet season in the summer months is exactly what is needed. There is no benefit difference with regards to crop production between a place that receives 10" or 20" out of the growing season. 10" down river doesn't help. 10" down a tile line doesn't help. I am willing to bet your plant available moisture is little different than many areas back east and is seldom anymore of a yield impediment than back east. You wouldn't have 200+APH's if it was. Your bigger issue with regard to reaching some of the yields seen in the east is GDU accumulation and corresponding corn maturity. It's a double edged sword with cooler temps minimizing crop stress. But the lack of ability to grow 115 day corn vs 100 day corn is also a yield detriment. That issue however dwarfs yield determinations caused by non growing season rainfall.
And yes many back east cry wolf too soon with regards to dryness. Edit: Thats not just an eastern trait however. That just a farmer trait in general. It's just a matter of severity with regards of east to west.
Edited by w1891 6/19/2025 10:23
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